A comprehensive review of the commercial clam industries in the United States / by Theodore P. Ritchie.
- Washington : Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.
ix, 106 p. :
- Clams -- Economic aspects -- United States.
Shellfish trade -- United States.